Datasheet
2
AT-OME-ST31A
for HDMI and USB-C with HDBaseT
™
and HDMI Outputs
Three-Input Switcher
Omega 4K/UHD
Key Features
3×1 HDBaseT switcher with HDMI and USB-C inputs
• USB-C and two HDMI inputs.
• Immediate compatibility with laptops and tablets
with USB-C ports supporting AV.
(1)
• No need to provide USB-C to HDMI adapters.
Mirrored HDBaseT and HDMI outputs
• Local and long-distance video outputs provide
exible options for AV system designs and
applications.
Video, audio, power, and data over category cable
utilizing HDBaseT technology
• Transmits up to 330 feet (100 meters) @ 1080p with
CAT5e/6 or 4K/UHD using CAT6a/7 cable.
(2)
• Supports 4K/UHD @ 60 Hz with 4:2:0 chroma
subsampling.
4K/UHD capability @ 60 Hz with 4:4:4 chroma
sampling on local ports (HDMI and USB-C), plus
support for HDR formats
• Local HDMI and USB-C ports are compatible with
4K HDR10 @ 60 Hz and Dolby Vision™ @ 60 Hz,
as well as HLG (Hybrid Log-Gamma) for 60p HDR
broadcast services.
Mirrored HDMI output with integrated 4K to 1080p
downscaling
• Integrated video processing available on the HDMI
output for automatic 4K/UHD @ 60 Hz to 1080
(based on connected display EDID).
• Ideal for applications with a mix of 1080p and UHD
sink devices, and when a 1080p condence monitor
is used in conjunction with 4K/UHD presentations.
Remote PoE (Power over Ethernet) or local powering
• Industry standard IEEE 802.3af PoE is supplied by
Atlona receiver or switcher over HDBaseT.
• Allows convenient switcher installation at a table or
other remote location, without the need for local AC
power.
• Also can be locally powered by the optional AT-PS-
245-D4 power supply – to supply PoE to a receiver
and charge a USB-C mobile device.
Automatic display control
• Automatically changes display power state based
on active or standby mode of the switcher. Control
signals to display are transmitted via IP, RS-232, or
CEC.
• Enables display and volume control. CEC enables
control of consumer displays (as supported by the
display manufacturer).
• Also can be congured to power o display after a
period of inactivity.
• Eliminates the need for a complex AV control system.
Automatic input selection using hot plug detect and
video detection technology
• Selects active input when sources are connected or
if there is a change in source power status.
• Enables simplied, automatic system operation
without user intervention.
Audio de-embedding
• De-embeds two-channel PCM audio from any video
source to a balanced, analog output.
• Independent volume and mute controls for
embedded and de-embedded two-channel PCM
audio, plus three-band EQ for the analog audio
output.
Multi-channel audio compliant
• Passes through multi-channel audio formats from the
HDMI or USB-C inputs.
• Supports PCM, Dolby
®
Digital, Dolby Digital
Plus
™
, Dolby TrueHD, Dolby Atmos
®
, DTS
®
Digital
Surround
™
, DTS-HD Master Audio
™
, and DTS:X
®
.
EDID management
• Manages EDID communications with the source
through a display’s EDID or internally stored EDID.
• Ensures desired audio formats and video resolutions
are provided to the AV system.






